The following information about the danger lead contaminated water in a humdifier was taken directly from EPA website:

“EPA has not concluded that using tap water in ultrasonic or impeller humidifiers poses a serious health risk. However, researchers have documented that these humidifiers are very efficient at dispersing minerals (pollutants) in tap water into the air. Specific to tap water with high levels of lead, exposure to the "cool mist" from ultrasonic or impeller humidifiers may carry similar exposure risks as ingestion of the tap water with lead due to the inhalation of the "cool mist" and absorption from the lungs.”

Alternatives to lead contaminated tap water . . .

Distilled or reverse osmosis filtered water may be the best alternative source of water for your humidifier. If your water has been tested and confirmed for lead and other harmful chemicals, a whole house water filter or a distiller may be the best way to remove these contaminants.

Look for an NSF-certified whole house water filter that can reduce lead in your water. A whole house or tabletop distiller will remove virtually all chemicals in your water making it pure to drink and to use in your humidifier.

Recommended NSF-certified water treatment options . . .

Watts 500221 Big Blue Non-Electric Whole House Water Filter with Ball Valve	OmniFilter BF7 Whole House Water Filter System – $ 83.00 From: FiltersFast
The Aquasana Rhino® EQ-300 Whole House Water Filter	The Countertop Water Distiller from Hammacher.

Related Blog Posts:

• Is Aquasana Water Filter a Scam?
• The Best Filtration Systems to Reduce Lead in Water
• Home Water Filtration System is a Must-Have Part of Our Daily Living
• Waterwise 4000 Home Water Distiller System Can Turn Your Contaminated Tap Water Into Pure Water
• The Best Tasting Water Could Still Need to Be Filtered